> If you have a single SSD for dedicated log, that will > surely be a bottleneck > for you.
We're aware of that. The original plan was to use mirrored DDRDrive X1s but we're experiencing stability issues. Chris George is being very responsible and we'll help us out investigate that once we figure out our most pressing performance problems. > Also, with so much cache & ram, it wouldn't surprise > me a lot to see really > low disk usage just because it's already cached. But > that doesn't explain > the ridiculously slow performance... We do see the load of those drives get much higher when we have several servers (all linux boxes) connected to it at once. The problem really seem to be at the individual linux boxes level. Something to do with iSCSI/networking even tho the 10GbE network can certainly handle a lot more than that. > I'll suggest trying something completely different, > like, dd if=/dev/zero > bs=1024k | pv | ssh othermachine 'cat > /dev/null' > ... Just to verify there > isn't something horribly wrong with your hardware > (network). > > In linux, run "ifconfig" ... You should see > "errors:0" We'll do that. Thanks! Ian -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
